PDF malware analysis — malicious · 060c4d632a176f21

MALICIOUS

PDF

69.3 KB Created: 2021-09-04 05:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07

MD5: 43e6cc980e5519235af3ea50b9fabe0f SHA-1: 3013f0c953d9e43f64e50e652f25432a16659f6a SHA-256: 060c4d632a176f2179669e7e977cbf2c5adfb2efba270b2975d46a4253f16b97

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating it likely serves as a phishing or malware distribution lure. The document contains a link farm pointing to numerous external URLs, many hosted on compromised CMS platforms or disposable domains, suggesting an attempt to obscure the ultimate destination. No scripts were extracted from this sample, but the presence of multiple external links and the overall detection profile strongly suggest a malicious intent, likely related to spearphishing.

Machine Learning

Nyx PDF Classifier malicious score 0.6055

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://stavclearing.ru/upload/files/85443628141.pdf In PDF document text
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/5596af524cd7d9b06583865f46e12e2f/feneta.pdfIn PDF document text
- https://eberli-medical-supply.ch/upload/file/fujuxisaravakap.pdfIn PDF document text
- http://lordbeaverbrook1973.com/clients/76835/File/9160548117.pdfIn PDF document text
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/gvfdjq11n1ulgp3dbe0po8gqra/11186466214.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/bed7351d52517eae4d1170f44d8cc4b9/72373850667.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/a64bcad7f397ad46557a2c96ef0030c4/11465889784.pdfIn PDF document text
- http://hgbs.de/userfiles/file/161454302.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c267666fb08---92948059824.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088881c91f10---gusulixureperubax.pdfIn PDF document text
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ede0b7da7---99034731896.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abdd9905b32---73500777294.pdfIn PDF document text
- https://hoya.hr/UserFiles/file/91832267576.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5e7830c80---zuvesokapejegosolakoxeti.pdfIn PDF document text
- https://windsbs.biz/files/file/73812304814.pdfIn PDF document text
- https://hoatuoi360.vn/uploads/files/musuxagimuzupiwogag.pdfIn PDF document text
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5a2862ed8---xeduj.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/555fd68a60a20a36dcf37f12ff4adab6/33517682327.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a91ac8c3071---tujasodedijimajavu.pdfIn PDF document text
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/6a4b0df433559b596319773131824172/64216755834.pdfIn PDF document text
- http://notarbrazda.cz/userfiles/file/xuturinet.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=alcatel+go+fliptm+manualPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000bf8a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBF8A	10636 bytes
SHA-256: `e074ff75c8cbf4fe44e472cad8ebbe5b092b642ccbd2c9fa6264cd0e0df1ff53`
`font_01_sfnt_off0000d7eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD7EB	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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